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/*-
* Copyright (c) 2009-2010 Brad Penoff
* Copyright (c) 2009-2010 Humaira Kamal
* Copyright (c) 2011-2012 Irene Ruengeler
* Copyright (c) 2011-2012 Michael Tuexen
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
/* __Userspace__ */
#include <stdlib.h>
#if !defined (__Userspace_os_Windows)
#include <stdint.h>
#include <netinet/sctp_os_userspace.h>
#endif
#include <user_environment.h>
#include <sys/types.h>
/* #include <sys/param.h> defines MIN */
#if !defined(MIN)
#define MIN(arg1,arg2) ((arg1) < (arg2) ? (arg1) : (arg2))
#endif
#include <string.h>
#define uHZ 1000
/* See user_include/user_environment.h for comments about these variables */
int maxsockets = 25600;
int hz = uHZ;
int ip_defttl = 64;
int ipport_firstauto = 49152, ipport_lastauto = 65535;
int nmbclusters = 65536;
/* Source ip_output.c. extern'd in ip_var.h */
u_short ip_id = 0; /*__Userspace__ TODO Should it be initialized to zero? */
/* used in user_include/user_atomic.h in order to make the operations
* defined there truly atomic
*/
userland_mutex_t atomic_mtx;
/* Source: /usr/src/sys/dev/random/harvest.c */
static int read_random_phony(void *, int);
static int (*read_func)(void *, int) = read_random_phony;
/* Userland-visible version of read_random */
int
read_random(void *buf, int count)
{
return ((*read_func)(buf, count));
}
/* If the entropy device is not loaded, make a token effort to
* provide _some_ kind of randomness. This should only be used
* inside other RNG's, like arc4random(9).
*/
static int
read_random_phony(void *buf, int count)
{
uint32_t randval;
int size, i;
/* srandom() is called in kern/init_main.c:proc0_post() */
/* Fill buf[] with random(9) output */
for (i = 0; i < count; i+= (int)sizeof(uint32_t)) {
randval = random();
size = MIN(count - i, (int)sizeof(uint32_t));
memcpy(&((char *)buf)[i], &randval, (size_t)size);
}
return (count);
}
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